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// Copyright (C) 2002 Dominique Devriese <devriese@kde.org>
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
#ifndef KIG_OBJECTS_COMMON_H
#define KIG_OBJECTS_COMMON_H
#include <set>
#include <vector>
#include <tqcstring.h>
#include <tqvaluelist.h>
#include <tqstringlist.h>
#include <cassert>
#include <klocale.h>
class Coordinate;
class KigDocument;
class KigPainter;
class KigPart;
class KigWidget;
class NormalMode;
class ObjectCalcer;
class ObjectDrawer;
class ObjectHolder;
class ObjectImp;
class ObjectImpType;
class ObjectPropertyCalcer;
class ObjectType;
class ObjectTypeCalcer;
class TQDomDocument;
class TQDomElement;
class Rect;
class ScreenInfo;
class Transformation;
typedef std::vector<const ObjectImp*> Args;
typedef TQValueList<TQCString> QCStringList;
template<typename T>
void delete_all( T begin, T end )
{
for( ; begin != end; ++begin )
{
delete *begin;
}
}
/**
* get the calcers that the holders represent and their namecalcers
*/
std::vector<ObjectCalcer*> getAllCalcers( const std::vector<ObjectHolder*>& os );
/**
* get the calcers that the holders represent ( not their namecalcers )
*/
std::vector<ObjectCalcer*> getCalcers( const std::vector<ObjectHolder*>& os );
/**
* The below is a trick. ObjectType's implement the singleton
* pattern. There can be only one of them at each time. This one
* instance of them needs to be constructed at some time, within the
* following restrictions:
*
* 1. They need to be constructed in the right order: if one ObjectType
* uses another in its constructor, the other needs to be constructed
* first. To achieve this, we use a scheme with ::instance()
* functions, that have a static variable in the body of the function
* ( if we would define them static outside of the function body, C++
* would provide no guarantee on the order they would be called in ).
*
* 2. They need to be constructed before Kig tries to use them. They
* need to be added to the ObjectTypeFactory before anyone tries to
* use that class to fetch a type. The below is a trick to achieve
* that in combination with the previous. Basically, we add a fake
* static instance of an empty class that receives the instance of the
* ObjectType as an argument to its constructor. C++ then guarantees
* that these things will be constructed before main() is entered.
*
* Thus, for your own ObjectType classes: use the scheme with the
* static ::instance methods, and add
* \code
* KIG_INSTANTIATE_OBJECT_TYPE_INSTANCE( MyObjectType)
* \endcode
* to the .cpp file of your class.
*/
class FakeClass {
public:
FakeClass( const ObjectType* ) {
}
};
#define KIG_INSTANTIATE_OBJECT_TYPE_INSTANCE( type ) static class FakeClass _fake_class_instance_##type( type::instance() );
#endif
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